Pyrophoric pocket igniter



inne 3; 1930. K. F. PROJAHN PYROPHRIG POGKET IGNITER Filed Aug. l6. 192

Patenten! June 3, 1930 PUNITED' STATES PATENT OFFICE KARL FRIEDRICH PROJ'AHN, OF ASCHAFFENBURG, GERMANY, A SSIGNOR OF ONE-HALZF T ISIDOR GILLIS, OF FRANKFORT-ON-CL'HE-MAIN, 'GERMAN'Y IYBOPHORIC IPOCKET IGNITER Appliqation fi1ed August -1s, 1927, Seflal.No. 213,359, nd in Germany July 23, 1927.

This invention relatrs 10 improvements in pyrophoric pockot ignitors, tl1e object 0f t l1e invention being t0 provide an improve l device of this character which is simple in canstruction, is efiicient in operation nnrlis not likely to get out o.f order.

VVith ehe above und 0ther objects in view, the invention consists in tl1e construction, combination ai1d arrangexnenl of devices -hereinafter described and clairnecl.

The drawings illustrafe by way 0f example a form 0f construction 0f a pocket igniter in accordance with Hie present invention, and

in which Figure 1 is a sectional elevation.

Figure 2 is a rear view.

'Figure 3 is' a side elevation, showing the igniter mechanism in fhe closed position.

Figure 4 is a side elevation, shqwing the igniter in the opened position.

Figure 5 is a section on the lii1e AB 0f Fig'llre l.

Figure 6 is a plan view of the complete igniter.

Figure 7 is a detail view of the supporting head and associatecl elements in sidee'levation, and

Figure 8 is a detail vieW qfthe same in glevation from the rear.

A container a for the infla1nmable material is provided with chambers b, b .communicating with euch other and which receive the the liquid inflannnuble material. The Chamber b is 0pen ab its lower end and is providecl with a closure 0 f0r said opei1ing. threade l therein und which when removed permits the filling 0f the chamber b, b. The chamber b has 21 closure holder (Z 101 the wick screwecl tightly int0 the c0ver. A chamber e open at constructed in the form of a lever and which is freely rotatable upon a screw axle h and has a friction surface only upon,its rounded portin. An opening is provided for a flinb z' which rests upon 21 plug pushed forward by the action of a spring 7c. The w'hole device for pushir1g the flint forward is intro duced into a casing which consists 0f a plug Z on the supportirig head f and provided with exteriorly arranged screw-thrends and cf a tubular shaped cap m screwed thereupon, by means 0f Which by screwing either up or down, the tensi on of the spring C2111 be adjsted.

The actuating spring 0f the lever=shaped friction member g consists -of a spring n wound in the form of a screw with bent up encls, one 015 Which is insertecl into a slot in the supporting head f, and the other in a similar slot in the friction member-g. .It is pushed over the screw axle h and embedded partly in a bored-outportion in a cheek of the supporting had and partly also in a sirnilar portion in the friction membsr g.

An exceedingly strong spring reaction is 0btained in this manner without having to coustruct the friction member and it-s Support ing head too thick. The head-like raised portion of the cover of the container is provided with a slot-shaped cut-away portion 0 extending into the Wall of the container.

proper. A closing and tension lever p as Well as a stop-member r for thesame are rotatably disposed in the cut-away ort-ion 0. The stop member has the shape of a sector of a circle and is roughened on its rear surface to ensure a grip and tends to swing its head inwards by means of a spring acting against 'the lower limb, in ordei to retain a stop nose p of the closing and tension lever p. If itis clesired to set free this latter, the stop member r is rotated in the direction of the arrow shown in Figure 1 .against the action- 0f its spring and t0 cause its head to swing outwards (Figure 4) By means of a-link s, the free end of the lever-shaped friction membr g is releasably connected tothe closing and tension lever p. F01 this purpose the latter has laterally projecting pins t, which are inserted into open slots provided in the and tgnsion lever varries an extinguishing cap u Which remains tightly pressed upon thenick-C0ntainor (l when the igniter is nnl n use, in spite of the tondency 015 the closing und tension lever to spring back. T he cx tinguishing cap u is rosiliently arid slidahly mount'od npon tho lev0r p. T0 render thi. possiblo, t-he closing und tonsion lever is pruvided with n vertival slot v und (bis sldt i covered at the sides by the'sliding'cheek uf the. ext-inguishing (".:p u. A small spring w is introdured into the slot v which presz=es con'tinunlly upon thc retaining pin m of tho. oxtinguishing -ap and connected t o tho slid ing cheek, und thc extinguishing cap with the closing und tension lever pressed dmvn remains pressed tightly upon the plate c0ntaining the wirk. The olosing and tension leier p is itself held against tlm action of' the spring w driving the frictio'n member g in the closed position i. e. the pressod down position by ehe resilient stop member 1.

'Ihe filling screw c of the container for thef inflamnhable material is provided with n, hollow cap 1 loosely inserted and conveniently removable, und in Which a number cf spare flints may be introdced and carried about.

In uSing the igniter, the stop member 1 is rotated \i'ith the th1imb in the direction shown in Figure 1 and its head swung mit fr0m under the.stop n6se p of the closing and tension lever. The latter is' thereby freed and in consequence of its link connectidn with the friction member is thrown out by the driving spring w into the osition shown in Figure 4. Sparks f roduced by the friction element are thrown upon the wickand thus ignite it. -The outward movement of the frietion memb'er is limited by the striking of the link against the supporting head. For the purpose of extinguishing the flamme, the closing and tension lever ;n ir=. again pressed down and thelever itself is again, retained by the stop member r resiliently swinging back; A 1300 easy and perhaps atrcidental release of the closing and tension lever is avoided by the particular arrangement und coustruction of ti1o Stop member.

Wl1en tl1e substitution 0f a flint 0r the 0.xchange 0f ehe friction member becomes necessary, the link s is unhooked from the pins't of the closing and tension lever p, this latter then thrown back and the supporting head f with all parts directly or indirectly counected therewith withdrawn upwards from the c01itainer for t l1e' inflammable inaterial. The insertion of the 'supporting head and thc linkilig up of the friction meniber t0 the closing an d tension lever are effected in an equally simple manner.

Having thus described n1y invention what I claim as new and desire to secure by Letters Patent is:

1. A pyrophoric pocket igniter having a flint a spring in th container for inflammable liquid and having a chamber, a wick holder in the container, a supporting head.having a threaded tubular portion, a; friction member provided with a spindle and carried in the supporting head, a helical spring disposed around the spindle 0f the friction member and having'nne ot' its vnd. insrted into the supporting head und the other in tl1e friction member and embedded partly in the said head and partly in the said friction member, a flint, a tubular membor disposed in said chamber and threadcd for cngagement with the tubular ortion upon the supporting l1ead, a sprin in said tubular mcinberf0r pressingthe int into contact with the friction member,a pivotally mounted closing and tension lever, a link associated wit-h the friction member and releasably connected to 'rhe closing und tension lever, a releasable stop device f0r retaining the said lever in the closed position and an extinguishing cap disposed at the free end of said lever.

2. A pyrophoric pocket igniter having a conraiher for inflammable liquid und having a clmmber, a wick holder in the containea threaded tubnlar momber disposed in the said chamber, a supporting head having a threaded tubnlar portion for enga ement witl1 the threadcd-tubular member, a riction member having a spindle and carried in the snpporting head, a helical spring disposed around the spindle of the friction member and havingbne 0f its ends inserted into the supporting head and the other in the friction member am] embedded parrly in the said head und partly in the srid friction member, a

{threaded tubular member for pressing the flint adjustably into COU- tact with the friction member, a pivotally mounted closing and tension lever, provided with a sfop n 0se co-operating with a p ivotally mounted stop member in the form 0f' a circular sector upon the casing, a fixed pin npon the container sumporting the stop member, n spring acti ng upon the stop member to retain tl1e closing am] tension lever nornially in fl1e closed position but yielding 130 permit the stop member t0 become disengaged from the tension lever.

' 3. A pyrophoric pocket igniter having a container for inflammable liquid and having a chamber, a wick holder in the container'a supporting head, a frictin member frmed as 1 lever and having a curved portion provided with a frirtion surface und carried by the supporting head, a spring acting directly npon said'friction member, a flint, a'tubular member disposed in the chamber, means disposed in snid tubular member for pressing the flint into contaot with the friction member, a pivotally mounted closing and tension lever reloasably connected to tho friction member,

- a releasable stop device. for retaining norat the free end of said lever.

ber and releasably connected to the closing band and tension lever, a releasable stop device for retaining normally the said lever in the closed position and an e xtinguishing cap disposed 5. A p oph0ric pocket igniter container for inflammable liquid, a wick holder in the container, a, artition providiad witl 1 a char'nber closed at its inner e'nd and extending into said container and formin two intercommunicating chambers in sai container, a filling screw in the bottom of said container, a supporting head, a frietion member and a spring acting directly thereon carried by the supporting head, a

flint, a tubular member disposed in the recess in the artition, means disposed in said'tubular member for pressing the flint into coutact with the friction member, a pivotally having a,

head, a iriction member and a spring actin g directly thereon carried by the support1ng head, a flint, a. tubular member disposed in the chamber in the partition, means disposed in said tubular member for pressing the flint into contact with the fricti0n member, a pivotally mounted closing and tension lever,- a

link associated ivith the friction member and releasably connected to the closing und tension lever, a releasable 'stop device for retaining normally the said lever in the closed position and an extinguishing cap disposed at the free end of said lever.

' In witness whereof I have hereunto set my KARL FRIEDRICH PROJAHN.

mounted closing and tension lever, a link associated With the friction member und releasably connected to the closing und tension lever, a releasable stop device for re taining norrnally the said lever in the closed tubular member for pressin position und an extinguishing cap disposed at the free end of said lever.

6. A pyrophoric pocket igniter having a container for inflammable liquid, a wick holder in the conta iner a. partition provided with a cha'mberclosed at its inner e'nd extending into said cntainer, a filling screw in the bottom of the container, a. ca.p removably mb unted in the filling screw, a.. supporting head, a friction memb er and a spring acting directly thereon' carried by the supporting head, a flint, a, tubular member disposed in th'e recess m the Partition, means disposed in said the flint into contact with the friction mem r, a. pivot8lly mounted closing and tension lever, a link &Ssociated with the fricti on member a.nd releasably connected to the cl osing ahd tension lever, a releasable stop device formetaining normally the sa id leverin the closed g cap disposed i position und an eXt-ingurshm at7theAfr'ee en %1 of said laivpr."

pyrop oric poc'e igniter having a. contamer for inflammabe liquid, wick holder in the container, a artition provided with a chamber closed Stits inner end extending into said conlzai1ier, a. supporting 

